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Life Science

Life Science. Chapter 1 . Exploring Life. Characteristics of Living Things. Made of Cells (organization ) 2. Reproduce 3. Grow & Develop 4. Adaptation (stimulus, response, homeostasis) 5. Need food & water (energy), produce waste. Where does life come from?.

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Life Science

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  1. Life Science

  2. Chapter 1 Exploring Life

  3. Characteristics of Living Things • Made of Cells (organization) 2. Reproduce 3. Grow & Develop 4. Adaptation • (stimulus, response, homeostasis) 5. Need food & water (energy), produce waste

  4. Where does life come from? Francesco Redi- first controlled experiment (change 1 thing) that showed: maggots come from flies, not rotting meat LazzaroSpallanzani- conducted a similar experiment with broth Louis Pasteur- showed conclusively that living things cannot come from nonliving things

  5. If living things can only come from other living things, how did life on earth begin? • Oparin’s Hypothesis: earth’s early atmosphere was made of gases and water vapor that is different from today’s atmosphere • Gases formed chemical compounds & fell into the hot seas, producing more complex compounds • This environment was suitable for life to begin

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